...&.&.&&.                                          ...&&.&&&.
.......&&&                                          &..&&.&.&&
&......&.&                                          &&.&&...&&
&&........                                          &&.&&&..&.
&&&.......                                          &&.&.&&...
&.&&......                   R41LS                  &&...&&&..
..&&&.....                                          &&&..&.&&.
..&.&&....                                          &.&&...&&&
&...&&&... &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& ..&&&..&.&
&&..&.&&..                                          ..&.&&...&
.&&...&&&. &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& &...&&&..&
.&&&..&.&&                                          &&..&.&&..
.&.&&...&&                                          .&&...&&&.
...&&&..&. TR41NS  4R3  SO  CONSTRUCT3D  TH4T  TH3Y .&&&..&.&&
&..&.&&... H4V3 TO FOLLOW 4 S3T P4TH. TH1S  P4TH 1S .&.&&...&&
&&...&&&.. C4LL3D 4  "R41LWAY", WH1CH 1S  COMPR1S3D ...&&&..&.
&&&..&.&&. OF TWO  M3T4L R41LS, H3NCE 1TS N1CKN4M3. ...&.&&...
&.&&...&&&                                          .....&&&..
..&&&..&.& B3C4USE TH3  LOW  FR1CTION  B3TWEEN  TH3 .....&.&&.
..&.&&...& WH3ELS OF TH3 TR41N 4ND  TH3 R41L M3T4L, &......&&&
&...&&&..& TH3RE 4R3  L1MITS FOR HOW 4CUT3 4  CURV3 &&.....&.&
&&..&.&&.. C4N  B3,  4ND  3VEN MOR3 SO FOR HOW MUCH .&&......&
.&&...&&&. TH3  GROUND  UND3R  TH3  R41LS   C4N  B3 .&&&.....&
.&&&..&.&& SLOP3D. THUS 4 R41LWAY 1S OFT3N  NOT L3D .&.&&.....
.&.&&...&& ON  TOP OF H1LLS, R4TH3R THROUGH TH3M 1N ...&&&....
...&&&..&. TUNN3LS  (1F   TH3Y   4R3   L4RG3),   OR ...&.&&...
...&.&&...            4RT1FICIAL CH4SMS.            &....&&&..
.....&&&..                                          .&...&.&&.
.....&.&&. TH3RE W1LL B3  TR3ES ON  TH3 S1D3 OF TH3 ..&....&&&
&......&&& R41LS,  BUT NOT TOO CLOS3, OR  TH3Y W1LL &..&...&.&
&&.....&.& B3  CUT  DOWN  BY  TH3 R41LWAY J4N1TORS. .&..&....&
.&&......& TH3RE  W1LL  B3 PL41NS,  4ND  BOD13S  OF ..&..&...&
.&&&.....&                  W4T3R.                  &..&..&...
.&.&&.....                                          &&..&..&..
...&&&.... TR41NS GO  BY D4Y 4ND  BY  N1GHT.  4LONG &&&..&..&.
...&.&&...      TH3 W4Y, TH3RE 1S 1NFORM4TION       &.&&..&..&
&....&&&.. SC4TT3RED, OFT3N  PUT  ON TOP  OF POL3S, ..&&&..&..
.&...&.&&. TO B3 1NT3RPRETED BY TH3  TR41N DR1V3RS. ..&.&&..&.
..&....&&& D1FF3RENT  P4RTS  OF  TH3  R41LWAY  H4V3 &...&&&..&
&..&...&.&          D1FF3RENT SP3ED L1MITS.         &&..&.&&..
.&..&....&                                          &&&...&&&.
..&..&...& SOM3T1MES, TR41NS H4V3 TO STOP 4ND  W41T &.&&..&.&&
&..&..&... FOR SOM3TH1NG  TO H4PP3N, F4R 4WAY. TH1S ..&&&...&&
&&..&..&.. 1S  S1GN4L3D BY  R3D  OR  GR3EN  L1GHTS. ..&.&&..&.
&&&..&..&.                                          &...&&&...
&.&&..&..&                 &&&&&&&&                 &&..&.&&..
..&&&..&..                                          .&&...&&&.
..&.&&..&. M4NY  P3OPLE  FOLLOW TH3  R41LS BY FOOT. .&&&..&.&&
&...&&&..& OFT3N TH1S  PROV3S  TO  B3  TH3  SHORT3R .&.&&...&&
&&..&.&&.. P4TH  B3TWEEN  TWO PO1NTS.  HOW3VER TH1S ...&&&..&.
&&&...&&&. 1S  FROWN3D  UPON,  4ND  V3RY   1MPOLIT3 ...&.&&...
&.&&..&.&&        TOW4RD TH3 TR41N DR1V3RS!         .....&&&..
..&&&...&&                                          .....&.&&.
..&.&&..&.                                          .......&&&
&...&&&...                                          &......&.&
&&..&.&&..                                          &&.......&
.&&...&&&.                                          &&&......&
.&&&..&.&&                                          &.&&......